Certina automatic blue ribbon, Volvo 1927–1977 edition. Calibre 25011 (2783), case back number 623 1218 41, 1977 Case diameter: 35 mm, excluding crown. Crown with Certina logo. New leather strap, length 19 cm, lug width 18 mm. Watch is in used, good condition, even wear, view the photos for your own assessment. The movement runs well, last servicing unknown to me. Date set function works. No accessories included. This lot will be shipped well-packaged and by insured post, with track and trace. Good luck bidding.